unionized (Adjective) — Not converted into ions.
unionized (Adjective) — Being a member of or formed into a labour union. ex. "unionized workers" ex. "a unionized shop"
unionized (Verb) — Recruit for a union or organize into a union. ex. "We don't allow people to come into our plant and try to unionize the workers"
unionized (Verb) — Form or join a union. ex. "The auto workers decided to unionize"